Wall-paper display machine



May 22, 1928.

W. E. HALL WALL PAPER DISPLAY IACHINE Filed larch 29', 1927 2 Sheets-Sheet 1 B j Ammg May 22; 1928.

W. E. HALL WALL PAPER PISPLAY MACHINE Filed March 29, 1927 2 Sheets-Sheet 2 7V? 5mm.

ifi lmmg derstood however, that various Patented May 22, 1 928.

WILLIAM E. HALL, OF WESTON WEST VIRGINIA. 1

' WALL-PAPER DISPLAY MAC IN Application filed March 29,1927. serial No. 179,375.

This invention relates to improvements in machines for displaying wall paper.

'An object of the invention resides in providing a machine" having a suitable belt member on which a plurality of wall paper or other specimens of sheet material may be mounted in which the strip member carrying the specimens is normally carried by a pair of roll members, so that an intermediate portion of the belt between the rolls is displayed through a suitable opening and in which an electric motor mechanism is used for driving the roll element to feed the strip from one roll to the other and Vice versa, in such a manner that it may be operated to feed the strip automatically through predetermined zone of movement or through suitable manual control means.

A further object of the invention resides in providing a display machine in which a suitable traveling web has the opposite ends mounted on a pair of spools or rollers adapted for operation in opposite directions, and in which suitable means is provided for electrically and automatically; controlling the motor to reverse the operation of the motor for moving the web in opposite directions, when it reaches the end portion in which the motor control means is operated by the web operating means.

The

invention comprehends numerous other objectsresiding inthe specific relation and construction of the parts for carrying the invention, all of which are more particu larly ,pointed'out in the following detailed description, and in the claims directed to a preferred form of the invention, it being unchanges in the size, shape and relation of the parts may be made without departing from the spirit and scope thereof. as herein set forth.

In the drawings forming part of this application:-- a

Figure 1 is afront elevational view of the improved display machine.

Fig. 2 is a vertical sectional view through the machine, taken approximately on the line 2-2 of Fig; 1.

Fig. 3 is a rear view of the machine with the back wall removed.

Fig. 4 is a detail sectional view taken on the line 44 of Fig. 3. Fig. 5 is an end elevation of the portion of the casing showing push buttons showing the manual control of the motor feed device.

Fig. 6 is a wiring diagram showing the electrical connect-ion for the several parts of the construction to obtain the proper automatic or manual control of the motor.

This improved display machine'includes a suitable housing 1-carried by the base 2 having the sloping front wall 3, as clearly shown in Fig. 2, providedwith the-display opening 4, through which thesamples of wallpaper or, other sheet material are exhibited to'view, while the rear wall of the casing is open and provided with the door 5 suitably hinged to one sidefor normally closing the same. i H

The'housing is reinforced by a suitable metallic frame 6 which forms the supporting mediumfor the apparatus used to display the sections of sheet material, such as wall paper and the like.

A guide frame 7 is mounted on the inside of the front wall 3 in the rear ofthe opening 4 and is provided with guide slots for sliding the web 8 in its movement in opposite directions past the display openings. This frame carries suitable electric bulbs 9 at the upper and lower ends thereof contained in a suitable lighting circuit and adapted to illuminate the samples displayed 1 on the web through the openings.

The guide roller 10 isrotatably mounted in suitable brackets carried by .the upper end portion of the frame 6 while thecross bar'll of said frame carries the lower guide roller 12,.f0r rotation in suitable brackets thereon. The opposite, end portions of the web 8 extending beyond the frame 7 is passed over these guide rollers 10 and 12 as shown in Fig.2.

The" web after-passing over guide roller 10 extends to the upper spool 13 carried by the upper operating shaft 14.- which is rotatably mounted in the vertical supporting'bars 15 carried by the frame 6. The lower end of the web 8 after passing over the guide roller 12, extends to and is mounted on the lower supporting spool 16 carried by the lower operating shaft 17 which is rotatably mounted in suitable bearings car-v ried by the bars v11 inthe frame 6. v

A. friction brake is indicated at 18 in Fig. 3, which is suitably connected to the frame ,6 and acts on the brake drum 19 carried by the upper drive shaft ,14 in order to obtain a tension on the web 8 of the machine.

The drive mechanism for the web includes an electric motor 20 mounted on the supporting bars 21'carried by the frame 6 and extending transversely between the sides thereof, which drives any suitable form of reduction gearing mechanism incheated by the numeral 20 having a drive shaft mounting suitable pinions for driving the endless chains 22. A pair of these chains 22 are illustrated, each of which is titted over the driven sprocket 23 carried by respective upper and lower drive shafts l4 and 17 so that both shafts are rotated simultaneously with the operation of the motor in order that the web may be wound in either direction from one'spool to the other.

Ratchet disks 24 are mounted on the shafts l4 and 17 respectively, adjacent to the gears 23 which are relatively rotatable on said shaft. The sprocket gears 23 carry spring-pressed pawls 25 which are normally adapted to engage the teeth of the ratchet disks 24. In the operation of the web in opposite directions, it will thus be seen that this provides a drive connection with one spool only, while the web is pulled over the guide rollers 10 and 12 from the other 'spobl, adapted to freely rotate in view of the fact that the pawl and ratchet connection providesa drive in only one direction, between the sprocket and the drive shaft.

Each sprocket gear 23 carries electro-magnets 26 adjacent to the spring pressed pawls 25 which are adapted to release said pawls from engagement with the ratchet disks 24, and are operated in such a manner that the pawl on the unwinding shaft for the web, is released from engagement with its ratchet disk, which is occasioned through the alternate cnergization of the electro-magnets 26 in the operation of the motor to Wind the web in either direction.

In order to provide means for automatically controlling the operation of the motor so as to reverse its direct-ion of speed of the web adjacent the end when one end portion is reached and before the end is wound off of the roller to which it is attached, a suitable :zupporting and guide bar is mounted in the frame (3 and at one side thereof, as indicated at 27 on which are adjustably mounted a pair of adjustable spaced contacts 28 suitably insulated from the bar 27, and a slidable contact member 29. The guide bar 27 is threaded enabling the contacts 28 to be moved vertically thereon whereby to regulate the interval' between the engagement of the contact 29 with the upper and lower contacts 28.

This slidable contact member has an extension 30 which is threadedly engaged with the rotatable threaded screw shaft 31 rotatably mounted in bearings in the frame 6 and having a worm gear 32 on the end thereof, intermeshed with the worm pinion 33 carried by the lower operating shaft 17. In this way, the screw shaft 31 is constantly rotated during the operation of the motor and the feeding of the web.

An oil switch is provided for reversing the operation of the motor 20, comprising a plurality of contacts generally indicated at 34 which are operated by the pivot-ed arm 35 pivotally mounted on the bracket member 36. An operating member 37 has its intermediate portion with a pin and slot connec tion to the free end of the operating arm 35 for the oil switch, and the opposite ends connected to the armatures of electro-inagnets 38 and 39 respectively, which have electrical connections with the contacts 28 in a manner which will be hereafter described to alternately move the switch from one position to another in order to reverse the direction of operation of the motor to feed the web between its limits of movement in 0pposite directions successively.

A pair of push buttons 40 and 41 shown in Figs. 1 and 5, are mounted on the outside of the casing 1 and are adapted to manually interrupt the operation of the motor so as to obtain the reversing of the direction thereof, at any desired point between its limits of movement under the control of the automatic mechanism.

A piston rod 66 extends downwardly from the arm 35 within the oil cylinder 67 attached to the bracket 36, a piston of the usual type beingiitted in the cylinder and pressurely actuating against the action of the men'ibers 37 to return the arm'35 to normal position when the device is idle. A

coiled spring 42 attached to the arm 35' facilitates the return movement of the arm 35.

For the purpose of transmitting energy to the electro-magnet 26, a bracket 43 is mounted on the main frame 6 and carries acontact member 44 as shown particularly in Fig. 4. This contact member 44 has engagement with the rotatable contact ring 45 car- .ried by the supporting arm 46 which is secured at its end to the sprocket gear 23 having an electric wire connection with one ter minal of the electro-magnets 26 while the opposite terminal is grounded.

lVith particular reference to Fig. 6, showing the wiring diagram, it willbe understood that a suitable source of current supply is obtained through the wires 47 having a main control switch 48 governing the operation of. the machine. One terminal of the switch 48 has a ground connection at 49 with the frame of the machine, while the other terminal has a wire connection 50 with the movable switch blade 51 of the oil switch 34, The other movable switch blade ill) 52 of the oil switch is grounded as indicated at 58.

These switch blades 51 and 52 have upper contacts 54 and lower contacts with which they are adapted'tor alternate engagement to close the circuit connections 56 to the motor, the upper circuit making connection with the motor to rotate in one direction, while the opposite contacts are connected so as to reverse the direction of current in the motor and reverse its direction of operation, any

suitable form of reference being used.

A third upper contact 46 and a corre -spondi11g-lower contact 58 is provided in the Oll switch tor engagement by the switch .lower respective contacts 28 01": the automatic control mechanism. These conductors 62 and (33 are also connected with one terminal of the respective switches; 40 and 41 while the opposite terminals of these switches are suitably grounded as indicated at 64. The slidable contact member 29 is provided with a ground connection as indicated at 65.

In the operation of this display machine, it will be understood that a series of wall paper sample sheets are suitably attached in successive relation, and if desired the machine may be used for displaying any other form of sheet material samples that may be desired. By closing the switch 48 to supply energy to the wires 49 and 50, the device will be placed in normal automatic operation through the normal action of the spring 42 to close the oil switch for operating the motor 20 in one direction.

This will correspondingly drive through oneof the chains 22 one of the drive shafts, and will automatically energize one of the magnets 26 to release the pawl on the shaft from which the web is beingunwound so that the web will be gradually fed at a slow rate of speed under the display opening 4 in the casing for displaying the sample sheets attached to said web. As the web is fed from one roll to the other and reaches its limit of speeding movement, the slide member 29 due to the rotation of the screw shaft 31 will feed said member so that one of the contacts thereon will engage one ot the previously adjusted stationary contacts 28. This will produce an electric circuit to the proper elect-ro-magnet 38 01'739 which will thus be energized and immediately reverse the. position of the oil switch, thereby re versing the direction-of current through the motor, deenergizing the previously energized electro-magnet 26, and energizing the previously de-energized one. I This reverse of rotation of the motor will immediately reverse the direction of travel of the web so. that it will continue its direct-ion of travel in. the reverse direction until the slide member :29 moves toengage the other stationary contact 28, when the opposite electro-magnet 3801' 39 will be energized to again reverse the oil switch 34.

This operation will be maintained auto matically and continuously as long as current is supplied to the motor. The Zone of movement of the'web for the display of samples may be controlled by adjustment of the stationary contacts on the guide rod 27. The operation of the switches 40 and 41 manually will serve to reverse the direction of the motor at any intermediate point of the zone of travel of the web undercontrol of the automatic mechanism, so that if it is desired to display one sample substantially continuously, to a prospective customer, the salesman may operate the buttons 40 and 41 to keep the motor operating in such direction, as to maintain the particular sample in view under the window or display opening 4. l i

It will thus be seen that an automatic sample display machine has been provided by the present invention in which the parts are normally and automatically operated through the cooperation of suitable electric operating control means for an electric drive motor, in which any desired time to operate the parts can be obtained.

Having thus described my lnvention, what I claim as new is p i 1. An automatic control for a tape reeling mechanism comprising in combination, a

pair of rotatable rollers arranged for opposite reeling action, drive means for the rollers, means for reversing the same and an ion electro-nagnetically controlled pawl and H ratchet connection between each of the rollers and the drive means.

2. An automaticcontrol for a tape reeling mechanism comprising in combination, a pair of rotatable rollers arranged for opposite reeling action, drive means for the rollers, means for automatically reversing the same at predetermined intervals, a pawl and ratchet connection between the drive means and each of the rollers, an electromagnetic control means for the pawl actuated through said reversing means whereby to operatively engage or disengage the same.

3. An automatic control for a tape reeling mechanism comprising in combination,- a pair of rotatable rollers arranged for opposite reeling action, drive means for the rollers, electr0-magnetic control means for automatically reversing the same at predeclerminecl intervals, means for adjusting the control means whereby to regulate the intervals between the reversing action, a pawl and ratchet connection between the drive means and each of the rollers and disposed for opposite operation With respect to each other and eleotro-lnagnetic control means for each of the pawls actuated through the 10 reverm'ng action whereby t0 alternately engage and dlsengage the same.

In testnnony whereof I alfix -my signature.

WILLIAM E. HALL. 

